CVE-2026-20637 Apple释放后重用漏洞

#include <stdio.h> #include <stdlib.h> #include <string.h> // Simulated PoC for Use After Free vulnerability // This code demonstrates the concept of accessing memory after it has been freed. int main() { // Allocate memory for a buffer char *buffer = (char *)malloc(100); if (buffer == NULL) { printf("Memory allocation failed.\n"); return 1; } // Copy data into the buffer strcpy(buffer, "Sensitive Data"); printf("Buffer content: %s\n", buffer); // Free the allocated memory free(buffer); printf("Memory freed.\n"); // Vulnerability: Use after free // The program attempts to access the memory that has already been freed. // In a real exploit scenario, an attacker might manipulate this memory // before this access to execute arbitrary code or cause a crash. printf("Attempting to access freed memory...\n"); printf("Buffer content (after free): %s\n", buffer); return 0; }